Both of the below works fine on the emulator (2.3.3), but on a real device (Nexus S with 4.1.2) no image is shown for the thumbnail. I will also try to run it on an Android 4 Emulator
. If I set a default android:src
for the ImageView
, it is not shown anymore then. This makes me think that it is replaced, but the ImageView
is empty.
public class MainActivity extends Activity {
ImageView img;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
img = (ImageView)findViewById(R.id.img_thumbnail);
new MyAsync().execute("http://commonsware.com/misc/test.mp4");
}
//This version is still not working, but it's more readable (edited: Selvin).
public class MyAsync extends AsyncTask<String, Void, Bitmap>{
@Override
protected Bitmap doInBackground(String... objectURL) {
//return ThumbnailUtils.createVideoThumbnail(objectURL[0], Thumbnails.MINI_KIND);
return ThumbnailUtils.extractThumbnail(ThumbnailUtils.createVideoThumbnail(objectURL[0], Thumbnails.MINI_KIND), 100, 100);
}
@Override
protected void onPostExecute(Bitmap result){
img.setImageBitmap(result);
}
}
}
I know that a similar question has been asked before, Displaying video thumbnails in an Android device from a remote video URL, but I have already tried this and same result.
Why doesn't this work on the device and how make it work?
Use FFmpegMediaMetadataRetriever to extract a thumbnail at the desired position: FFmpegMediaMetadataRetriever